fix typo

Author: tabacitu

src/resources/error_views/400.blade.php

@@ -12,5 +12,5 @@
   @php
     $default_error_message = "Please <a href='javascript:history.back()''>go back</a> or return to <a href='".url('')."'>our homepage</a>.";
   @endphp
-  {!! isset($exception)? ($exception->getMessage()?$e(exception->getMessage()):$default_error_message): $default_error_message !!}
+  {!! isset($exception)? ($exception->getMessage()?e($exception->getMessage()):$default_error_message): $default_error_message !!}
 @endsection